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From: PD on 27 Jan 2010 12:03
On Jan 27, 5:03 am, "Peter Webb"
<webbfam...(a)DIESPAMDIEoptusnet.com.au> wrote:
> Its summer where I am now, and on the weekend my girlfriend came over for a
> swim in the pool.
>
> The pool is shady, heated to 28 degrees C, the outside air temperature was
> maybe 32. She goes into the house, brings out 2 beers that have been sitting
> in a fridge at 4 degrees, and then proceeds to put them in the water to keep
> them cool!
>
> I know that's not right, and I even know why its not right, but how to
> explain it? My attempts didn't work, but then she is an idiot.

Water is a better thermal conductor than air.
This is why 28C water feels cool compared to 32C air, because it wicks
heat out of a 37C body faster. For that matter, 32C water would feel
cooler than 32C air for the same reason.
On the other hand, 28C water would wick heat INTO a bottle of beer
faster than 32C air, for the same reason.

This should explain things even to an idiot.
From: Uncle Al on 27 Jan 2010 13:47
Peter Webb wrote:
>
> Its summer where I am now, and on the weekend my girlfriend came over for a
> swim in the pool.

Swimsuit fibers clog the filter.

> The pool is shady, heated to 28 degrees C, the outside air temperature was
> maybe 32. She goes into the house, brings out 2 beers that have been sitting
> in a fridge at 4 degrees, and then proceeds to put them in the water to keep
> them cool!

How can you swim in 80 F water? Hot tub for lackadaisical stuff.

The average woman grew up playing with dolls. They have no concept of
cause and effect. Have one drive a nail - they cannot curse well,
either. There may be competent female mechanical engineers. There
may be giant flying vampire toads, too.

> I know that's not right, and I even know why its not right, but how to
> explain it? My attempts didn't work, but then she is an idiot.

Heat flows downhill. She need not be smart, only willing (and
perverse).

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz4.htm
From: J. Clarke on 27 Jan 2010 16:36
Uncle Al wrote:
> Peter Webb wrote:
>>
>> Its summer where I am now, and on the weekend my girlfriend came
>> over for a swim in the pool.
>
> Swimsuit fibers clog the filter.
>
>> The pool is shady, heated to 28 degrees C, the outside air
>> temperature was maybe 32. She goes into the house, brings out 2
>> beers that have been sitting in a fridge at 4 degrees, and then
>> proceeds to put them in the water to keep them cool!
>
> How can you swim in 80 F water? Hot tub for lackadaisical stuff.
>
> The average woman grew up playing with dolls. They have no concept of
> cause and effect. Have one drive a nail - they cannot curse well,
> either. There may be competent female mechanical engineers. There
> may be giant flying vampire toads, too.

It's a pity Miss Shilling isn't still alive to beat you about the head and
neck with her motorcycle chain for that one.

>> I know that's not right, and I even know why its not right, but how
>> to explain it? My attempts didn't work, but then she is an idiot.
>
> Heat flows downhill. She need not be smart, only willing (and
> perverse).

From: Yevgen Barsukov on 27 Jan 2010 18:04
On Jan 27, 5:03 am, "Peter Webb"
<webbfam...(a)DIESPAMDIEoptusnet.com.au> wrote:
> Its summer where I am now, and on the weekend my girlfriend came over for a
> swim in the pool.
>
> The pool is shady, heated to 28 degrees C, the outside air temperature was
> maybe 32. She goes into the house, brings out 2 beers that have been sitting
> in a fridge at 4 degrees, and then proceeds to put them in the water to keep
> them cool!
>
> I know that's not right, and I even know why its not right, but how to
> explain it? My attempts didn't work, but then she is an idiot.

You are right on the short term (as you are planning to drink the bear
immediately) but she is right on the long term (maybe she is planing
to let
it sit there for hours).

Lets see what will happen
1) air - after several hours, but beer will change from 4 to 32C
2) water - after 15-30 min warming, beer will change from 4 to 28C,
but than
it will stay at that temperature which is less than 32C.

So, over short periods 1 is better, over long periods 2 is better.
Are you right or wrong?
Not so clear anymore. Depends on the intentions towards the beer.

Looks like you had a bit of wishful thinking there - finish the beer
quickly and go over to more interesting things. She might have
different ideas. So much can be derived from beer cooling
strategies...

Regards,
Yevgen
From: Androcles on 27 Jan 2010 18:14

"Yevgen Barsukov" <evgenijb(a)gmail.com> wrote in message
news:cc9322eb-bf55-4f43-b2f3-1f8f3afdbf34(a)h2g2000yqj.googlegroups.com...
On Jan 27, 5:03 am, "Peter Webb"
<webbfam...(a)DIESPAMDIEoptusnet.com.au> wrote:
> Its summer where I am now, and on the weekend my girlfriend came over for
> a
> swim in the pool.
>
> The pool is shady, heated to 28 degrees C, the outside air temperature was
> maybe 32. She goes into the house, brings out 2 beers that have been
> sitting
> in a fridge at 4 degrees, and then proceeds to put them in the water to
> keep
> them cool!
>
> I know that's not right, and I even know why its not right, but how to
> explain it? My attempts didn't work, but then she is an idiot.

You are right on the short term (as you are planning to drink the bear
immediately) but she is right on the long term (maybe she is planing
to let
it sit there for hours).

===============================================
I like a nice cold bare bear that I can plane until it is plain.
===============================================


Lets see what will happen
1) air - after several hours, but beer will change from 4 to 32C
2) water - after 15-30 min warming, beer will change from 4 to 28C,
but than
it will stay at that temperature which is less than 32C.

So, over short periods 1 is better, over long periods 2 is better.
Are you right or wrong?
Not so clear anymore. Depends on the intentions towards the beer.

Looks like you had a bit of wishful thinking there - finish the beer
quickly and go over to more interesting things. She might have
different ideas. So much can be derived from beer cooling
strategies...

Regards,
Yevgen


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